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Fluid simulation · gpt-5.6-sol

Create a real-time fluid simulation on a full-screen canvas where dragging the mouse pushes swirling colored dye through the fluid.

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transcript · 6 messages
user

Create a real-time fluid simulation on a full-screen canvas where dragging the mouse pushes swirling colored dye through the fluid.

assistant
thinking
**Inspecting directory for index.html**

I need to focus on building the index.html file. First, I should inspect the directory to see what files and structures I have in place. This will help me understand how to proceed with creating the HTML file properly. Maybe I can check for existing templates or resources that I can use. I want to make sure I follow the correct structure and best practices. Let's see what I've got!
bash {"command":"ls -la && printf '\\nPI vars:\\n' && env | grep '^PI_' | sort","timeout":10}
toolResult

total 0 drwxr-sr-x. 2 node node 6 Aug 3 00:22 . drwxrwsrwx. 3 root node 16 Aug 3 00:22 .. PI vars: PI_CODING_AGENT=true PI_MODEL=openai/gpt-5.6-sol PI_PROVIDER=openrouter PI_REASONING_LEVEL=medium PI_SESSION_FILE=/home/node/.pi/agent/sessions/--tmp-ws--/2026-08-03T00-22-08-696Z_019fc4ff-d638-7557-b38c-4c03416fb792.jsonl PI_SESSION_ID=019fc4ff-d638-7557-b38c-4c03416fb792 PI_TIMEOUT_MS=600000

assistant
write /tmp/ws/index.html (16330 bytes)
toolResult

Successfully wrote 16330 bytes to /tmp/ws/index.html

assistant

TAKE IT TO CODE

A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.

RUN

modelgpt-5.6-sol
vendorOpenAI
harnesspi-agent
generated2026-08-03

EVALUATION

4/5 working

Fluid simulation with colorful blobs that swirl on their own and respond to click, drag, wheel, and keys with turbulent color mixing.

Vision grade · anthropic/claude-sonnet-5

MEASUREMENTS

Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.

idle motion1.9%
on click10.2%
on drag11.6%
on wheel6.4%
on arrow keys12.5%
on w/a/s/d15.0%
frame spread68.2 / 255
console errors0
js errors none

METRICS

runtime78.3s
tokens in2.5k
tokens out6.2k
cached2.3k
cost / run$0.1881